Steam-trap.



F. G. MARQUARDT & F. J. DELLINGER.

STEAM TRAP.

APPLICATION FILED APR.15, 1912.

Patented Apr. 29, 1913.

mamm

2 SHEETS-SHEET 1 P. G MARQUARDT & F. J. DELLINGER'.

STEAM PEAR APPLICATIOH FILED APR. 15,1912.

Patent-s91 Apr.29, 1913 2 BHEETSSHEET 2.

FRANK G. MARQUARDT AND FRANK J. DELLINGER, 0F CLEVELAND, OHIO.

STEAM-TRAP.

Specification of Letters Zatcnt.

4 till Fatented Apia 29h Traps, of which the following is a full clear and exact description, reference being had to the accompanying drawings.

-This invention relates to steamtraps or devices whereby Water of condensation is automatically removed from a steam system Without disturbing the pressure conditions existing within that v ystein.

.The objects of the invention are the pro- Vision of a device of this character of reater'simplicity than any device heretoore. in use for this purpose; the provision of a device wherein the outlet Valve shall bemore tightly closed during the normal operation of the trap than is the case in other devices; the provision of new and improved means for alining the fixed and movable members of the outlet valve and for permitting inspection of and repairs to said outlet valve; the provision of new and improved-means for supporting the bucket or float; while further objects and advantages of our invention will become apparentin the'course of the following description and claims.

Generally speaking, our invention may be defined as consisting of the combinations of elements recited in the claims hereto annexed and illustrated in the drawings accompanying and forming part of this application, wherein:

Figure 1 represents a vertical longitudinal, cross-sectional, view through the center of a trap constructed in accordance with our invention; Fig. 2 is a bottom View of the cap or valve bonnet; Fig. 3 is a horizontal cross-sectional view taken on the line 3-3 of Fig.1 and looking downwardly; Fig. 4 is a detail cross-sectional view taken on the line 4-4 of Fig. 1 looking clownwardly;.Fig. 5 15 an end view of the movable member of the valve; and Fig. 6 is a transverse cross-sectional view through the nut whereby the valvestem is articulated to the bucket or float.

' supporting feet 3,

in one or" the side walls adjacent to the top of the body an inlet aperture :3, threaded or otherwise adapted for the recep Y tion of an inlet pipe (not shown) and preterably covered by a shield 6 whereby the entering fluid is prevented from being injected directly into the bucket or float. ihe side wall of the body is also termed with an outlet aperture 7 likewise threaded or otherwise formed for the reception or". a suitable discharge pipe the inner end oi said outlet aperture communicating with a recess 8 formed in the bot y wall and opening through the top 4 thereof; The body is also formed at its lowermost point with an aperture 9 for the reception of a drain cock or mud valve. V

10 represents the top or cover of the trap which preferably consists of a cast metal plate adapted to be secured upon. the top so as to close said body and having its lower surface formed with a downwardly projecting bracket 11 pierced by a vertical bore 12 through which the collected water may be discharged. T his bracket is preferably formed with integral ribs or line 13 and 1 for its greater stiilness, thelower end of the latter tin preferably being divided into a pair of spaced ears 15l5 whose general direction is preferably substantially parallel to the major axis of the trap body. The top of the cover is formed with a raised up wardly facing, seating portion 18 having a substantially tiat top it) and slotted ears 2%, the lower surfaces of which spaced from the top of the plate 10 sufiiciently to'permit the insertion of a bolt head as shown in Fig. l. The upper end of the bore 12 opens through the fiat surface 19 and is at this point surrounded by a recess or cbunterbore 21, the center of which preferably coincides with the axis of the bore 12. The cover is also formed with a passageway 22 one end oi Which opens through the surface 19 at a point removed from the bore 12, and the other end of which opens through the lower surface of the cover at a point which shall Zlhebottom of this cup shaped member is formed with a central aperture in which is secured in any suitable manner as by up setting or spinning, he seating member 28 of the outlet valve. Secured to the upper surface 19 of the seating portion 18 is the valve cap or bonnet 30, which consists of a hollow casting having a central bore 31 adapted to receive the upwardly projecting portion of the valve member and also having a port 32 adapted'to register with the upper end of the passageway 22. The thickness of the flange 26 is such as to cause the fixed member to place when the valve bonnet is scou ed to the cover. The wall of the bonnet opposite the valve seat 28 is preferably apertured for the reception of a screw plug 33 which may not only be removed to permit the inspection of the valve, but will receive the impact of the discharging fluid and will be more easily replaceable than would cast parts. Secured in each of the ears 123 155 upon a line substantially normal to the majOr axis of the trap body is a bearing sleeve 35, the inner-ends of these crably upset as at 8'6 whereby they are retained place and the outer ends being slightly flared or tapered for the reception at the conical inner ends of pivot pins 31 -37. lhese pivot pins are threaded into the parallel sides 38--38 of apro-jection 39 formed at the end of an open topped oblong bucket 40. When this bucket is in a substanti-ally horizontal in Fig. 1', the bottom ll thereof lies closely adjacent to the lower end of the bracket 11 through which opens the lower end of the bore 12, and in the bucket bottom directly so bcneath the end i this bore is a nut 42. This nut is formed with a threadedportion adapted to enter the aperture in the bucket bottom and with a Iflange adapted to overlie the bucket bottom adjacent to said aperhollowed or recessed as at 43' and pierced with a plurality oi: diametrictil apertures .441, as shown in Figs. 1 and 6. A pivot pin 45 is inserted in that aperture which is most nearly parallel with the axis of the pins 37 and a valve stem 46 is articulated to this pin and extends upwardly through the bore 12. The upper end of this stem is received in a sleeve 47 the sides of which are pro vided with spaced laterally projecting arms 4:8, the ends of which engage the cylindrical surface 27 or the valve member 25. The upper end of the sleeve 47 receives the inovr able member 49 of the valve which is removably secured therein by a pin 50 or other convenient means,

Supposing the bucket 4 to be .substan tially empty and thc body l to be partly filled with liquid, it is obvious that as buoyancy of the bucket will maintain the be clamped rigidly inered by a water sleeves being pref-1 position as illustrated tu're, the threaded portion of. the nut being,

Loa s-")1 outlet valve'closed. As the water level in the body'rises by the addition of liquid thereto from the inlet pipe, come when thesame will overflow into the bucket whereupon the latter will fall lid open the outlet valve so as to permit he water in the bucket to be ejected through the bore 12, port 32, passageway 22, etc,

a time will a by the pressure of the steam. This disv charging action will continue until the liquid in the trap down to the level ofthe lowest point of the body has been drawn rim ot the depressed bucket and for a sufiicient time after that to lighten the bucket so that its buoyancy will cause it to rise and reseat the valve. This reseating action occurs before the water inside of the bucket v has been drawn down sufliciently to uncover the lower end oi the-bracket 11, The lower end of the bore 12 is therefore always cove erosion of the valve by the passage of a mixture of liquid and vapor is prevented.

The advantages derived from pivoting the bucket directly to the lower end of the discharge ,pipe are numerous. The decrease in the distance of the pivot from the end of the discharge bore 12' causes the bucket to move away from said bore a smaller amount when the same is depressed, even though the angle of. depression of the bucket should remain the same, ing the sealing of the discharge valve with a smaller amount the small distance between the. bucket pivots and the valve stem causes the force exerted upon'the stem the bucket to begreater than would otherwise be possible and of the discharge pipe and bucket pivoting bracket into one member simplifies the construction; and the ing causes them to be kept clean and free from sediment or scale by reason of the rush of liquid therearonntl.

In case it be necessary the outlet valve it is merely necessary to remove the bonnet 80 whereupon the mem ber 25 ofthe valve can be freely lifted out of its socket. The member 49 of the valve will thereupon be immediately accessible since it projects above the seat19. I

While we have necessarily described our invention in detail, we

by the buoyancy" of.

to repair or renew do not propose to .be. liinited'to such details except as the same seal and the scouring or p of water in the bucket;

so tends toprevent I leakage through the valve; the combination location" of the pivots inside the bucket close to the discharge open-;

surface, of a float pivoted within said re ceptacle, a valve stem art-iculatedto said float and extending upwardly through said face of said cover and engaging said pro-.

jection, said bonnet having a passageway therethrough for the discharge of liquid.

2. In a, steam trap, the combination with a receptacle having a cover said cover having a downwardly projecting bracket and said bracket being formed with a bore extending from the lower end thereof to the top surface of the cover, of a'pair of spaced ears carried by the lower end of said bracket, a horizontal sleeve secured in each of said ears, a bucket surrounding the lower end of said bracket and having a pivot pin threaded into each of its walls andhaving a conical end engaging one of said -sleeves, the

inner ends of said sleeves being spaced apart, a fixed valve member rigidly secured in said bore and having a seating portion,

a valve stem articulated to said bucket and projecting into said bore, and a movable valve member" secured to the upper end of said stem and adapted to engage said fixed valve member.

3. In a steam trap, the combination with a receptacle having a-cove'r, said cover having a downwardly projecting bracket and said bracket being formed with a bore ex tending from the lower end thereof to the top surface of the cover, of a pair of op posed pivot sockets carried by the lower end of said bracket, a bucket surrounding the lower end of said bracket and having at one side a project-ion having substantially parallel walls, a pivot pin threaded into each of said walls and having a conical endengaging one of said sockets, a valve in said bore and avalve stem articulated to said bucket and governing said valve.

4. In a steam trap, the combination with a body and a cover for said body, said cover having an upwardly facing seating portion, there being adischarge bore in said cover opening through said upwardly facing seating portion and the upper end of said bore being recessed, of a fixed valve member having a flange adapted to fit in such recess and having a guiding portion, a valve bonnet adapted to be secured on said seating portion and to engage the upper side of said flange whereby said valve memberis clamped in place, said bonnet having a discharge pasrzageway formed therethrough, a vertically u'novable float for said body a valve stem movable with said float and adapted to pro- .member having an annular flange adapted to fit in said recess and having a cylindrical interior and an annularv seat, a bonnet adapted to be secured to said seating portion and to claim saidflange in the counterbore, said bonnet aving a bore receiving said fixed valvemember, a float movable within said body, a valve'stem securedto said float and projecting into said discharge bore, a guide carried by said valve stem and engaging the cylindrical portion of said fixed'valvef member, and a movable valve member-carried by said stem and adapted to engage said seat. I l

6. In a steam trap, the combination, with a bodyhaving a cover receiving top and a recess in its wall opening through said top, said'recess communicating with an outlet aperture, and acover secured to said body and having'an upwardly facing seating portion and a passageway opening through said seating portion and communicating with; said recess,said cover being also formed with 0 a discharge bore opening through said seat ing portion at its upper end and spaced from said passageway, the upper end of said bore being counterbored, of a fixed valve member having a peripheral flange received 5 I her at a point above said seating portion, a no hollow'bonnet having a bore receiving the upwardly projecting portion of said -fixedvalve member and a port registering with.

said passageway, said port and bore being in communication with vthe hollow interior of said bonnet, means securing said bonnet to said cover so as to clamp said flange in said recess, a float 'ipivoted within said body,

a stem articulated to said float and project'- ing through said discharge bore, a guide .120 member carried by said stem and engagin the interior of said fixed valve member, an

a movable valve member detaehably 'con- 1 nected to said stem and adapted to engage said valve seat.

7. In a steam trap, the combination, with a tiltable bucket having a threaded aperture in its bottom, of a nut ha ing a threaded portion adapted to enter sa d aperture and a flat portion adapted to overlie the bottom nut being arecesed"and fbrmed'iwitbwplm our signaturesin the presence of two wit-"10 turns;mvpivot pimadaptedato-be-receivedin; FRANK G. MARQUARDT'. alwthahaperture whiehimmosfi nearly-parallel FRANK J2 DELIJINGER;

with the pivotal axis of flm bucket; and'afi- Witnesses:

valve -stemwyiappedvto :bewcarriedby said- HAROLD-Ev SMITH,

pivot-id- ALBERwH-LBATES: 

